[Issue 14831] Each function local symbols should have unique mangled name

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=14831

hsteoh at quickfur.ath.cx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WORKSFORME                  |---

--- Comment #9 from hsteoh at quickfur.ath.cx ---
Test case still produces two identical manglings on DMD git master
(7a0382177f35b2766c2d0ba60dae5e541d8033e0):

Output of OP's test case:
-------
_D4test4mainFZ1xi
_D4test4mainFZ1xi
-------

This is wrong because `x` in each case refers to a different local variable in
a different scope.

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